That's very helpful thanks! I love LEGO personally, and my son and I enjoy building things with his big block (towers especially) but I haven't picked up a DUPLO set yet. Think I'll do that this rotation when I get home.@mimico_polak we started with Lego/Duplo around 3. They have simple RC toys for kids that age but what I found is that they did not keep my kids attention. Around 5 is when the TERRIBLE RC cars / Trucks / Robots started showing up as gifts. I would recommend getting something with big tires that goes slow but is fun. Having a rechargeable battery is a bonus otherwise hit amazon for batteries. It'll have to be able to take a lot of abuse (drop, step on, crashes) otherwise it'll last a few hours and endup in the bin.
I've gone through a few <50 drones with my now 8 year old. As much easier as they are to fly now, they are still difficult to fly unless he (and you of course) are willing the put the time in together. I have a little helicopter still in a box (as a gift) that he wants me to take out. I know it'll last about 25 seconds before it can't fly anymore.
Hope this helps.
As for the cheaper drones I think he's way too young for it, but will look into some cheap RC for him in the coming months/year to see how he reacts. Mind you I may be thinking he's more advanced/mature than he is at this stage! The good RC stuff will be for me....I mean him when he's older.